C Programming Fundamentals

C Programming Fundamentals

From Syntax to Systems-level Skills in 2 days (or 4 x half days)

Empower your coding craft with real-world C essentials - industry-driven.

Performance matters. Portability matters. And when you need to work close to the metal, C is still the language that gets it done. This two-day intensive cuts straight to what matters in real systems programming: embedded systems, tooling, utilities, system libraries, and infrastructure. Your instructor has spent 30+ years writing code that ships, and you'll learn C the way it's actually used, not from sterile textbook problems. We'll move fast through syntax and IDE setup, then dig into version control, build tools, memory management, pointers, structures, file I/O, and the standard library. By the end, you'll have the practical skills to build and maintain solid C codebases that actually work.

Learning Outcomes

By the end of this course, participants will be able to:

• Understand and apply core C language syntax: variables, data types, operators, control flow, functions.
• Use an IDE and build environment to create, compile, debug and run simple C programs.
• Perform basic version control with Git and automate builds via a Make-based Makefile.
• Grasp memory management fundamentals: pointers, allocation, deallocation, pointer arithmetic.
• Define and use structures, manage composite data types, and apply file I/O operations.
• Leverage the C Standard Library for real tasks (e.g., string handling, dynamic memory, I/O).
• Integrate the above into simple but meaningful C programs that reflect industry-style workflows rather than purely textbook problems.

Prerequisites

• Basic familiarity with programming logic (variables, loops, conditionals) in any language (e.g., Python, JavaScript, Java) is helpful but not mandatory.
• Access to a development machine (Windows/Linux/macOS) with an IDE or text-editor, a working C compiler (e.g., GCC, Clang) and ability to install Git.
• An open mind to dig into both higher-level language concepts and lower-level system concerns (memory, pointers).
• Enthusiasm for hands-on coding; this course is practice-centric, not purely theory.

Course Outline (Detailed Topics)

• Introduction & Course Setup
  • Why C still matters in modern software (systems, embedded, tooling)
  • Course logistics: environment setup, IDE or editor selection, compiler toolchain (GCC/Clang), Git installation, Make infrastructure
  • Directory structure and project layout for small C programs
• Basic C Syntax and Programming Constructs
  • Variables, data types (int, char, float, double, void, etc.), constants, enums
  • Operators (arithmetic, relational, logical, bitwise)
  • Control flow: if/else, switch, loops (for, while, do-while), break/continue
  • Functions: declaration vs definition, parameter passing (by value), return types, scope and lifetime
  • Simple program creation: “Hello, world”, input/output via scanf/printf, error-checking
• Development Tooling: Git and Makefile
  • Git basics: repository initialization, commit, branch, merge, basic workflow (clone, add, commit, push/pull)
  • Makefile fundamentals: targets, dependencies, rules, variables, phony targets, cleaning builds
  • Integrating Git + Make: structuring project to track source, headers, build artifacts
  • Hands-on: create a small C program with a Makefile, commit initial version to Git, make modifications and track changes
• Memory Management and Pointers
  • Understanding memory: stack vs heap, static vs dynamic allocation
  • Pointers: definition, dereferencing, address-of operator, null pointers, pointer arithmetic
  • Dynamic memory: malloc, calloc, realloc, free — safe patterns and common pitfalls (leaks, dangling pointers)
  • Pointer to pointer, arrays and pointers interplay, pointer to function basics
  • Hands-on exercises: implement dynamic arrays, pointer-based iteration, simple dynamic data structure
• Structures, Composite Types and Typedefs
  • Defining struct, union, enum; using typedef for clarity
  • Nested structures, self-referencing structures (e.g., linked list node)
  • Memory layout of structures, alignment/padding concerns, best practices
  • Hands-on: define a structure representing a real-world entity (e.g., employee record), allocate/free, populate fields, print contents
• File Input/Output and the C Standard Library
  • Standard I/O: fopen, fclose, fread, fwrite, fprintf, fscanf, perror and error handling
  • Text vs binary file operations, file pointer positions (ftell, fseek)
  • Command-line arguments (argc, argv) and basic parsing
  • Using C Standard Library: <stdlib.h>, <string.h>, <stdio.h>, <ctype.h>, <errno.h>
  • String handling functions (strcpy, strncpy, strcmp, strlen, strchr), memory utility (memcpy, memset)
  • Hands-on: build a small C utility that reads a text file, processes content (e.g., count lines/words/characters) and writes output to another file; use Git+Make for build and version control
• Putting It All Together: Simple Program Workflow
  • Project workflow: plan > code > build via Make > debug/test > commit to Git
  • Build a mini-project: for example, a “student records manager” command-line C program that uses structures, pointers, dynamic memory, file I/O and modular functions
  • Code review and discussion: how to write maintainable C code (naming conventions, modularization, header files, separating interface vs implementation)
  • Common debugging techniques: using gdb or IDE debugger, using valgrind (or similar) to find leaks/pointers issues
• Best Practices & Modern C Notes
  • Safe coding guidelines in C (checking return values, validating pointers, avoiding undefined behaviour)
  • A brief overview of the latest C standard revision ISO/IEC JTC1/SC22/WG14 and its impact: e.g., the upcoming C2Y standard after C23.
  • Transitioning from writing simple programs to maintainable codebases: structuring for readability, reusability, documentation, version control practices
  • Next steps: how to evolve skillset into system-level development, embedded systems, performance tuning
• Q&A, Wrap-up, and Roadmap for Further Learning
  • Review of key learning outcomes
  • Discussion of individual learner questions, troubleshooting typical issues (e.g., pointer bugs, segmentation faults, build issues)
  • Provide recommended resources, books, online tutorials, community practices (forums, open-source C projects)
  • Encourage participants to commit to a simple project post-course to reinforce learning